1 files changed, 6 insertions, 0 deletions

diff --git a/fs/nilfs2/page.h b/fs/nilfs2/page.h
index f53d8da41ed7..fb9e8a8a2038 100644
--- a/fs/nilfs2/page.h
+++ b/fs/nilfs2/page.h
@@ -35,12 +35,14 @@ enum {
         BH_NILFS_Node,
         BH_NILFS_Volatile,
         BH_NILFS_Checked,
+        BH_NILFS_Redirected,
 };
 
 BUFFER_FNS(NILFS_Allocated, nilfs_allocated)    /* nilfs private buffers */
 BUFFER_FNS(NILFS_Node, nilfs_node)              /* nilfs node buffers */
 BUFFER_FNS(NILFS_Volatile, nilfs_volatile)
 BUFFER_FNS(NILFS_Checked, nilfs_checked)        /* buffer is verified */
+BUFFER_FNS(NILFS_Redirected, nilfs_redirected)  /* redirected to a copy */
 
 
 void nilfs_mark_buffer_dirty(struct buffer_head *bh);
@@ -59,6 +61,10 @@ void nilfs_free_private_page(struct page *);
 int nilfs_copy_dirty_pages(struct address_space *, struct address_space *);
 void nilfs_copy_back_pages(struct address_space *, struct address_space *);
 void nilfs_clear_dirty_pages(struct address_space *);
+void nilfs_mapping_init_once(struct address_space *mapping);
+void nilfs_mapping_init(struct address_space *mapping,
+                        struct backing_dev_info *bdi,
+                        const struct address_space_operations *aops);
 unsigned nilfs_page_count_clean_buffers(struct page *, unsigned, unsigned);
 
 #define NILFS_PAGE_BUG(page, m, a...) \